Article ID: 260186
Article Last Modified on 2/19/2007
APPLIES TO
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Advanced Server
This article was previously published under Q260186
SYMPTOMS
When you upgrade your Microsoft Windows NT 4.0-based computer that is running Domain Name Service (DNS) to Windows 2000, you may experience name resolution issues.
If you then stop the DNS service and set the following registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DNS\Parameters\SendPort
Value type: REG_DWORD
Value in decimal: 53
as described in the Windows 2000 Resource Kit, you may receive the following error message when you restart the DNS service:
In addition, the following events may be logged in Event Viewer:
NOTE: The DNS server starts as expected if you configure the SendPort registry key to a value other than 53.
CAUSE
This problem occurs because of a change in DNS behavior in Windows 2000.
RESOLUTION
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The English-language version of this fix should have the following file attributes or later:
Date Time Version Size File name Platform --------------------------------------------------------------- 06/13/2000 03:47p 5.0.2195.2096 321,296 Dns.exe Intel
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.
MORE INFORMATION
Windows 2000 DNS uses ephemeral ports as the source port in an iterative query from a Windows 2000 DNS server to a root server, and Windows NT 4.0 and BIND implementations of DNS use User Datagram Protocol (UDP) port 53. Because of this, you need to leave all ephemeral ports open when you configure a firewall or router Access Control List (ACL).
For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:
249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes
Keywords: kbhotfixserver kbqfe kbbug kbdns kbenv kberrmsg kbfix kbwin2000presp2fix KB260186